SpeexKit

JavaScript/TypeScript utility toolkit — 500+ functions, 48 modules, zero dependencies.

npm install speexkit

Features

• NDArray — NumPy-style arrays: broadcasting, slicing, matmul, axis reductions
• ML — StandardScaler, MinMaxScaler, LinearRegression, KMeans, LabelEncoder, KNN, trainTestSplit, metrics
• Stats — normalPDF, ttestInd, skewness, kurtosis, pearsonCorrelation
• Viz — histogram, kde, boxPlotData, ecdf, colorMap
• Functional — curry, pipe, ifElse, when, unless, converge, memoizeSync
• Validation — 28 validators: isEmail, isIP, isUUID, isCreditCard, isStrongPassword, isCronExpression, isIBAN, isISBN, isJWT, isLatLng, isMACAddress, isSemVer
• Date — formatDate, timeAgo, addBusinessDays, parseDuration, timezone, humanizeDuration, getHolidays
• Async — Queue, Semaphore, RateLimiter, Mutex, debounceAsync
• Collection — groupBy, topoSort, deepGet, pickBy, mapValues, diff, paginate, rotate, transpose
• Math — safe float, median, stddev, percentile, correlation, factorial
• String — slugify, uuid, nanoid, camelCase, levenshtein, fuzzyMatch, wrap, highlightMatches, diacriticsRemove, toTitleCase
• 28 type guards — isString, isNil, isPlainObject, isTypedArray, getType
• Config — loadConfig, maskSecrets, watchConfig, file/env/cli sources
• Cache — LRUCache, LFUCache, TTLCache
• CLI — renderTable, Spinner, confirm, prompt, colorize
• Queue — scheduleEvery, Debouncer, Cron
• Resilience — CircuitBreaker, Bulkhead, retryWithBackoff, Fallback, Timeout
• Security — sanitizeHtml, hashPassword, scanSecrets
• DOM — copyToClipboard, scrollTo, trapFocus, onClickOutside, onVisible
• Events — EventEmitter with typed events
• i18n — formatCurrency, formatNumber, formatList, formatRelativeTime
• Observability — metrics, tracing, baggage
• State Machine — typed state machines with transitions
• Realtime — WebSocketClient with reconnect/backoff
• Feature Flags — percentage rollout, toggles
• Schema — validate, parse, assertSchema
• Mock — mockFn, spy, stub, Clock
• Units — unit conversion, formatting
• Geo — haversine, geohash encode/decode/neighbors
• Diff — deepDiff, applyPatch, merge
• Storage — localStorage/sessionStorage/memory wrappers
• Error — createError, TypedError, MultiError, Result<T,E> (Ok/Err)
• Crypto — generateToken, generateOTP, base64, randomHex, sha256, sha512
• IO — parseCsv, safeJsonParse, readJSONFile, writeJSONFile, watchFile
• Auth — signJWT, verifyJWT, generatePKCE
• HTTP — createHttpClient, interceptors, retry/circuit-breaker integration
• Serialize — MessagePack, base58/62 encoding
• Reactive — signal, computed, effect (framework-agnostic)
• Template — mustache-compatible render/compile
• Structures — Trie, Graph, Heap, BloomFilter, LinkedList, Deque, DisjointSet, Maybe, Either
• SVG Charts — bar, line, scatter, pie chart generators (zero-dep SVG)

Quick Examples

import { NDArray } from 'speexkit/nlarray'
import { StandardScaler } from 'speexkit/ml'
import { normalPDF, ttestInd } from 'speexkit/stats'
import { curry, pipe } from 'speexkit/nlfunction'
import { formatDate, timeAgo } from 'speexkit/date'
import { isEmail, isStrongPassword } from 'speexkit/validation'

// NDArray — NumPy-style arrays
const arr = NDArray.arange(12).reshape([3, 4]);
arr.sum(1); // [6, 22, 38]

// ML — StandardScaler
const scaler = new StandardScaler();
scaler.fit([[1, 2], [3, 4], [5, 6]]);

// Stats — t-test
ttestInd([1, 2, 3], [4, 5, 6]);

// Functional
const add = curry((a, b) => a + b);
add(1)(2); // 3
pipe(x => x + 1, x => x * 2)(5); // 12

// Date and validation
formatDate(new Date(), 'YYYY-MM-DD');
isEmail('[email protected]');
isStrongPassword('P@ssw0rd!');

Modules

| Subpath | Description | |---------|-------------| | speexkit/core | deepClone, deepMerge, pipe, memoize, debounce, throttle | | speexkit/math | Safe float, median, stddev, percentile, correlation, factorial | | speexkit/date | formatDate, timeAgo, addDays, business days, timezone, parseDuration, humanizeDuration, getHolidays | | speexkit/string | slugify, uuid, nanoid, camelCase, levenshtein, fuzzyMatch, wrap, highlightMatches, diacriticsRemove, toTitleCase | | speexkit/async | Queue, Semaphore, RateLimiter, Mutex, retryAsync, debounceAsync | | speexkit/validation | 28 validators: isEmail, isIP, isUUID, isCreditCard, isStrongPassword, isCronExpression, isIBAN, isISBN, isJWT, isLatLng, isMACAddress, isSemVer | | speexkit/collection | groupBy, topoSort, deepGet, pickBy, mapValues, diff, deepFreeze, paginate, rotate, transpose | | speexkit/ml | StandardScaler, MinMaxScaler, LinearRegression, KMeans, LabelEncoder, KNN, metrics, distances | | speexkit/stats | normalPDF, ttestInd, skewness, kurtosis, pearsonCorrelation | | speexkit/viz-data | histogram, kde, boxPlotData, ecdf, colorMap | | speexkit/nlarray | NDArray class with broadcasting, slicing, matmul, ufuncs | | speexkit/nlfunction | curry, pipe, ifElse, when, unless, converge, memoizeSync | | speexkit/crypto | generateToken, generateOTP, base64, randomHex, sha256, sha512 | | speexkit/color | hexToRgb, hexToHsl, lighten, darken, contrastRatio, meetsWCAG | | speexkit/error | createError, TypedError, MultiError, Result<T,E> (Ok/Err) | | speexkit/logger | Structured logger with console/JSON/file transports | | speexkit/io | parseCsv, safeJsonParse, safeJsonStringify, env helpers, readJSONFile, writeJSONFile, watchFile | | speexkit/path | join, resolve, basename, dirname, extname (cross-platform) | | speexkit/type | 28 type guards: isString, isNil, isPlainObject, getType | | speexkit/config | loadConfig, maskSecrets, watchConfig, fileSource, envSource, cliSource | | speexkit/cache | LRUCache, LFUCache, TTLCache | | speexkit/cli | renderTable, Spinner, confirm, prompt, colorize | | speexkit/queue | scheduleEvery, Debouncer, Cron | | speexkit/resilience | CircuitBreaker, Bulkhead, retryWithBackoff, Fallback, Timeout | | speexkit/security | sanitizeHtml, hashPassword, verifyPassword, generateSalt, scanSecrets | | speexkit/dom | copyToClipboard, downloadFile, readFileAsText, readFileAsDataURL, onClickOutside, lockScroll, trapFocus, getViewport, isTouchDevice, scrollToTop, scrollToElement, debounceResize, onVisible | | speexkit/events | EventEmitter, typed events | | speexkit/intl | formatCurrency, formatNumber, formatList, formatRelativeTime, resolveLocale | | speexkit/observability | meter, counter, histogram, trace, span, baggage | | speexkit/state-machine | StateMachine, typed states/transitions | | speexkit/realtime | WebSocketClient, reconnect, backoff | | speexkit/feature-flags | FeatureFlagStore, percentage rollout, toggles | | speexkit/reporter | buildReporter, checkReport | | speexkit/schema | validate, parse, assertSchema | | speexkit/mock | mockFn, mockModule, spy, stub, Clock | | speexkit/units | convert, findUnit, formatUnit | | speexkit/geo | haversine, geohashEncode, geohashDecode, geohashNeighbors | | speexkit/diff | deepDiff, applyPatch, merge | | speexkit/storage | localStorage, sessionStorage, memoryStorage wrappers | | speexkit/expansion | env expansion, nested expansion, template expansion | | speexkit/auth | signJWT, verifyJWT, decodeJWT, generatePKCE, parseBasicAuth | | speexkit/http | createHttpClient, middleware, interceptors, RateLimitMiddleware | | speexkit/serialize | encodeMsgPack, decodeMsgPack, encodeBase58/62, decodeBase58/62 | | speexkit/reactive | signal, computed, effect — framework-agnostic reactivity | | speexkit/template | render, compile — mustache-compatible template engine | | speexkit/structures | Trie, Graph, Heap, PriorityQueue, LinkedList, Deque, BloomFilter, DisjointSet, Maybe, Either | | speexkit/dep-exray | Dependency scanner + CLI (npx dep-exray .) | | speexkit/coverage-boost | Coverage heuristics and utilities | | speexkit/analyzer | Code analysis utilities | | speexkit/scanner | File/directory scanner | | speexkit/known-mappings | Well-known type/format mappings |

Comparison

| Feature | speexkit | lodash | mathjs | date-fns | |---------|----------|--------|--------|----------| | Zero dependencies | YES | NO | NO | YES | | NDArray (NumPy) | YES | NO | YES (heavy) | NO | | ML (scikit-learn) | YES | NO | NO | NO | | Stats (SciPy) | YES | NO | NO | NO | | Auth (JWT/PKCE) | YES | NO | NO | NO | | Schema validation | YES | NO | NO | NO | | Reactive signals | YES | NO | NO | NO | | SVG chart generators | YES | NO | NO | NO | | Async concurrency | YES | NO | NO | NO | | 28 validators | YES | NO | NO | NO | | Circuit breaker / Bulkhead | YES | NO | NO | NO | | Config management | YES | NO | NO | NO | | DOM helpers | YES | NO | NO | NO | | CLI toolkit | YES | NO | NO | NO | | Cache (LRU/LFU/TTL) | YES | NO | NO | NO | | Bundle size (gzip) | ~28 KB | ~71 KB | ~200 KB | ~1 KB/fn |

Quality

• 2,544 tests across 46 test files — all passing
• 0 runtime dependencies
• TypeScript strict — full .d.ts declarations
• Tree-shakeable — ESM with sideEffects: false
• Dual ESM + CJS packages
• MIT license

GitHub: https://github.com/superdevids/speexjs